OPTICALLY VARIABLE SECURITY ELEMENT

The invention relates to an optically variable security element for providing security assurance for articles of value, which has different visual appearances when viewed from the front side and the rear side and displays common perspective information. The security element comprises a front securit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Pfeiffer, Matthias, Mengel, Christoph, Scherer, Kai Herrmann, Lesch, Harald, Scherer, Maik Rudolf Johann
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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Beschreibung
Zusammenfassung:The invention relates to an optically variable security element for providing security assurance for articles of value, which has different visual appearances when viewed from the front side and the rear side and displays common perspective information. The security element comprises a front security feature having a translucent or transparent first face region and an opaque second face region, the first face region of which has a higher permeability to cross-linking radiation, in particular to UV radiation, than the second face region, both face regions producing a visual appearance of the front. The security element comprises an optically variable security feature on the rear side, which has a cross-linked effect layer with a sheet-like, three-dimensionally oriented effect pigment, a first and a second side region, the effect pigment being oriented in a different manner, the two side regions producing a different appearance on the rear side. The first surface region of the security feature on the front side and the first surface region of the security feature on the back side are arranged congruently, and the two first surface regions generate common perspective information.